The bispectrum of relativistic galaxy number counts

@article{Dio2015TheBO,
  title={The bispectrum of relativistic galaxy number counts},
  author={Enea di Dio and Ruth Durrer and G. Marozzi and Francesco Montanari},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
  year={2015}
}
We discuss the dominant terms of the relativistic galaxy number counts to second order in cosmological perturbation theory on sub-Hubble scales and on intermediate to large redshifts. In particular, we determine their contribution to the bispectrum. In addition to the terms already known from Newtonian second order perturbation theory, we find that there are a series of additional `lensing-like' terms which contribute to the bispectrum. We derive analytical expressions for the full leading… 

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